DR. MICHAEL AARON KLEIN MD
NPI 1366029092
Internal Medicine in Mesa, AZ

NPI Status: Active since March 27, 2021

Contact Information

6644 E BAYWOOD AVE
MESA, AZ
ZIP 85206
Phone: (480) 321-2000

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  • Individual
  • Male
  • Years of Experience 5
  • Internal Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MICHAEL KLEIN

This page provides the complete NPI Profile along with additional information for Michael Klein, an internist established in Mesa, Arizona with a medical specialization in Internal Medicine and more than 5 years of experience. The healthcare provider is registered in the NPI registry with number 1366029092 assigned on March 2021. The practitioner's primary taxonomy code is 207R00000X with license number 73233 (AZ). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1366029092
Provider Name
DR. MICHAEL AARON KLEIN MD
Gender
Male
Entity Type
Individual
Location Address
6644 E BAYWOOD AVE MESA, AZ 85206
Location Phone
(480) 321-2000
Mailing Address
6644 E BAYWOOD AVE MESA, AZ 85206
Mailing Phone
(561) 676-2610
Medical School Name
OTHER
Graduation Year
2021
Is Sole Proprietor?
No
Enumeration Date
03-27-2021
Last Update Date
08-08-2024
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An internist like Michael Klein is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
73233
License State
AZ
Taxonomy Description
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Medicare Participation & PECOS Enrollment Status

Michael Klein is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Michael Klein is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 9537561097

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20240822001032

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $31.92 for a new patient copayment and $24.5 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 85206 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $127.71
  • Minimum New Patient Price $55.44
  • Maximum New Patient Price $168.6
  • Average New Patient Copayment $31.92
  • Minimum New Patient Copayment $13.86
  • Maximum New Patient Copayment $42.15

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $98
  • Minimum Established Patient Price $17.72
  • Maximum Established Patient Price $137.41
  • Average Established Patient Copayment $24.5
  • Minimum Established Patient Copayment $4.43
  • Maximum Established Patient Copayment $34.35

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for DR. MICHAEL AARON KLEIN MD

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1366029092
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
231260218018
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 3 + 1 + 2 + 6 + 0 + 2 + 1 + 8 + 0 + 1 + 8 + 24 = 58
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 58 = 22

The NPI number 1366029092 is valid because the calculated check digit 2 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1821089855DR. TRICIA LEE PATTERSON PHARM.D.
Individual
Pharmacist (Pharmacotherapy)6644 E BAYWOOD AVE PHARMACY DEPARTMENT
MESA, AZ 85206
(480) 981-4349
1699734087 ARMANDO MONTERO MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1164482998 VERONICA BOLICK NP
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1336109131 SUJIT MAGIYAWALA MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1548220361 THOMAS WEEKLY MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1891755492 DELILAH STEPHENS MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1235199845 DENNIS MOON MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1952361396 ANITA OJHA-HAMMAD MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(602) 618-9127
1861452328 DEREK BRAUN MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1093776452 LAWRENCE YOUNG MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1568423929 KIRK BUTLER MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1619938032 STEVEN CERVI-SKINNER MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1366403883 CRISTIANA OWEN RD
Individual
Dietitian, Registered6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4388
1134182744 MIHAE GRACE JOO MD
Individual
Internal Medicine6644 E BAYWOOD AVE APOGEE MEDICAL GROUP
MESA, AZ 85206
(480) 321-4391
1710915764TEAM PHYSICIANS OF ARIZONA PC
Organization
Emergency Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(925) 924-1600
1659385995 CATHERINE NOLAN DO
Individual
Emergency Medicine6644 E BAYWOOD AVE BANNER BAYWOOD
MESA, AZ 85206
(480) 981-2000
1043316847 ANDREW MARTIN HEMMEN MD
Individual
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 981-4391
1285796821CAHMD LLC
Organization
Internal Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(602) 618-9127
1568513471DR. ALISON JEAN SMITH M.D.
Individual
Emergency Medicine6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 321-4211
1265572846DR. DEON JACK PILKINGTON PHARM.D., CACP
Individual
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)6644 E BAYWOOD AVE
MESA, AZ 85206
(480) 321-4396

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1366029092, enumerated in the NPI registry as an "individual" on March 27, 2021

The provider is located at 6644 E Baywood Ave Mesa, Az 85206 and the phone number is (480) 321-2000

The provider's speciality is Internal Medicine with taxonomy code 207R00000X

The provider has more than 5 years of experience.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $127.71 with an average copayment of $31.92 for new patient appointments. Established patients should expect a typical charge of $98 and an average copayment of 24.5. Please review your insurance plan or contact the provider directly to determine your specific costs.

This NPI record was last updated on March 27, 2021. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.